#container{
	width: 1920px;
	height: 900px;

}
#header{
	margin-top: 100px;
	margin-left: 25%;
	margin-right: 25%;
    width: 50%;
	height: 50px;
	background-color: white;
	float: left;
}


#header img{
	float: left;
	margin-right: 100px;
}
li{
	list-style: none;
}




.header_nav{
	font-size: 10px;
	font-family: Arial;
	margin-left: 8px;
	float: left;

}
#main{
	/*margin-left: 25%;*/
	/*margin-right: 25%;*/
	width: 100%;
	height: 554px;
	background-color: #232d3b;
	float:left;
}
#main_left{
	width: 30%;
	height: 500px;
	float:left;
	margin-left: 20%;
	padding-top: 111px;
}
.youzi {
	background-color: red;
	border-radius: 10px;
	font-weight: bold;
	font-size: 30px;
	font-family: 幼圆;
}
#youx_pic img{
	margin-top: 60px;
	margin-left:450px;
	float: left;
}
#youx_pic {
	float: left;
}

.art1{
	font-size:50px;
   font-family:幼圆;
	float: left;
	color: white;
	margin-bottom: 10px;

}#art2{
	border: 1px;
	font-size:30px ;
	font-family: 仿宋;
	color: whitesmoke;
	float: left;
 }
#clear{
	float: none;
}
#main_pic{


}